Description

The MegaSquirt 3 with MS3X expansion arrives equipped with features surpassing MS2 & MS1 systems, like sequential fuel & spark, 2 step, progressive nitrous, boost control, onboard traction control & much more!  MS3X paved the way for the powerful MS3Pro systems by AMP EFI.

MS3X helped Lee Sicilio to a 283mph record at Bonneville in his beautiful twin-turbo charged Daytona Charger.

Are you on a budget, but still want complete control of your race purpose vehicle?  MS3X has the features to give you a serious competitive advantage without breaking the bank.

MS3X Standard Features:

• 8 Sequential fuel injection outputs. Each can drive a high impedance injector, unused injection outputs can be re-purposed.
• 8 Logic level 5 volt ignition outputs. Works with many types of ignition modules and coils, including LSx coils and our IGN1A. Requires external module or coils with internal ignitors.
• 6 Medium current outputs. Use for 2 stage progressive nitrous, boost control, tach output, 3 wire idle speed control, general purpose PWM or relay control, or many other potential applications.
• 3 Analog inputs. Use for an external MAP sensor, second O2 sensor, fuel pressure, accelerometer, or general data logging.
• 4 Switch inputs. Can be used to start data logging, arm a nitrous system, switch tables, launch control, VSS input (Hall sensor or VR with external conditioner), and more.
• 1 Cam sensor input. Can be used with VR, Hall, or optical sensors.
• VE and ignition tables are both 16 x 16 with full interpolation.
• 0.1% steps on VE table, 0.1 degree steps on ignition table
• Socket for an onboard SD card – no laptop required for data logging  (SD Card not included)
• Built in USB port
• GM stepper IAC control
• Closed loop idle and mixture control
• CANBus communications for interface with GPIO Board, IO Extender, or other devices
• Staged injection
• Native support for many different OEM trigger patterns

Connect MS3X via serial laptop connection and enable it in TunerStudio.

For complete MS3 documentation and more see http://www.msextra.com/

Prroduct FAQ

What harness do I need with this?

• You need both the MegaSquirt harness and the MS3X harness.

What inputs and outputs is the MS3 V3.57 with MS3X set up for?

• It is set up for sequential fuel control and eight channel logic level spark output, with the following inputs and outputs:
  • Coolant temperature
  • Air temperature
  • MAP sensor (built in)
  • Throttle position sensor
  • O2 sensor – narrow band or external wideband controller
  • Crank and cam position sensor input – Hall, optical, or VR
  • On/off, stepper, or PWM idle control – unused idle control outputs can be repurposed as general purpose relay control outputs
  • Fuel pump relay
  • Eight fuel injector banks plus two fuel injector outputs for a second stage or general purpose outputs
  • 3 analog 0-5V inputs
  • Flex fuel input
  • 6 on/off or frequency inputs
  • 0-12V tach output
  • 5 general purpose on/off or PWM outputs
  • 8 5V logic level spark outputs
  • CANbus

What firmware does it have?

• The MS3 V3.57 ships with the latest MS3 code. The code it initially shipped with will be indicated on a sticker on the underside of the unit.

Is the V3.57 board available in kit form?

• The V3.57 is essentially a V3.0 that has been changed for machine assembly with very few differences. Consequently, it is not offered in kit form.

What connections are on the DB15?

• By default, it only has a couple extra reference voltage and ground pins for sensors. The DB15 can be used for adding optional I/O if you run out of pins on the main connector.

Where is it built?

• The components are assembled at various locations in the US, with final assembly completed in Suwanee, Georgia.

What is the warranty?

• We provide a one year limited warranty against manufacturing defects.